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Vitamin C

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Introduction

Vitamin A is essential for your health, supporting cell growth, immune function, fetal development and vision. Perhaps one of the best-known functions of vitamin A is its role in vision and eye health.

Retinal, the active form of vitamin A, combines with the protein opsin to form rhodopsin, a molecule necessary for color vision and low-light vision (5Trusted Source). It also helps protect and maintain the cornea — the outermost layer of your eye — and the conjunctiva — a thin membrane that covers the surface of your eye and inside of your eyelids (6Trusted Source).

Body Functions

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Recommended Daily Intake

Deficiency symptoms

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Side Effects

Vegan Food Sources

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